Will Radar stop Wind Farm Life Extensions? - Pager Power
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Will Radar stop Wind Farm Life Extensions?

Will Radar stop Wind Farm Life Extensions?
November 29, 2018 Mike Watson

In Britain wind farms typically have a design life of 25 years. Typically this means there is a condition attached to the original planning permission meaning that the wind farm has to be dismantled after 25 years.

Life Extensions

Many wind farms are now approaching their twenty fifth birthday with many operators exploring the option of extending the life of these existing wind farms. This is often an attractive option because it is difficult to obtain planning consent for new wind farms and repowering the wind farm (replacing it with new larger turbines) may not be an option.

Wind farm life extensions require extending the land lease and extending the operational life of the turbines. It also typically requires a new planning application with an associated Environmental Report.

Will Radar stop Wind Farm Life Extensions?

Radar Objections

Whilst it is likely that radar operators will be consulted it is expected that, in most cases, there will be no objection because:

  • The radar operator has managed whatever impact there is since the wind farm was built
  • The radar operator is likely to have approved the wind farm initially
  • Radar mitigation measures may already be in place

In some cases, however, the radar operator may raise concerns. This could be because:

  • There is technical mitigation solution in place which is set to become obsolete
  • The airspace use above and around the wind farm is set to change
  • New radar and systems are planned
  • The wind farm has an adverse impact on radar which is now deemed unacceptable

These situations could occur because radar systems and air traffic control displays typically have a design life of fifteen years which means that radar technical mitigation solutions have a limited lifespan.

Historical Impacts

There are many operational wind farms that do affect radar that do not have technical mitigation solutions in place. This is partly because the wind farm assessment process used  by all UK radar operators has changed significantly since the first UK wind farms were built.

Before 2005:

  • Wind farms more than 30km from a radar were rarely assessed
  • A number of wind farms were given the “all clear” due to errors in the radar operators’ assessment processes
  • Predicted technical impacts were generally tolerated more than they are now

Conclusions

There are many wind farm that are operational today that would be objected to if they did not exist and a new application were to be submitted now.

Generally it is unlikely that wind farm life extensions will be prevented due to radar alone. Nevertheless radar impacts need to be managed and there may be a requirement to implement or extend mitigation solutions.

Assessment of radar impacts is recommended together with initial engagement with radar operators.

Further Information

To learn more about Pager Power’s radar impact assessments, click here.

 

Image accreditation: https://commons.wikimedia.org/wiki/File:Mablethorpe_Wind_Farm_-_geograph.org.uk_-_1804556.jpg

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